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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: rust-toolset:rhel8 security, bug fix, and enhancement update
Advisory ID:       RHSA-2021:3063-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:3063
Issue date:        2021-08-10
CVE Names:         CVE-2020-36323 CVE-2021-28875 CVE-2021-28876 
                   CVE-2021-28877 CVE-2021-28878 CVE-2021-28879 
                   CVE-2021-31162 
=====================================================================

1. Summary:

An update for the rust-toolset:rhel8 module is now available for Red Hat
Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

Rust Toolset provides the Rust programming language compiler rustc, the
cargo build tool and dependency manager, and required libraries.

The following packages have been upgraded to a later upstream version: rust
(1.52.1). (BZ#1953002)

Security Fix(es):

* rust: optimization for joining strings can cause uninitialized bytes to
be exposed (CVE-2020-36323)

* rust: heap-based buffer overflow in read_to_end() because it does not
validate the return value from Read in an unsafe context (CVE-2021-28875)

* rust: panic safety issue in Zip implementation (CVE-2021-28876)

* rust: memory safety violation in Zip implementation for nested iter::Zips
(CVE-2021-28877)

* rust: memory safety violation in Zip implementation when next_back() and
next() are used together (CVE-2021-28878)

* rust: integer overflow in the Zip implementation can lead to a buffer
overflow (CVE-2021-28879)

* rust: double free in Vec::from_iter function if freeing the element
panics (CVE-2021-31162)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

For information on usage, see Using Rust Toolset linked in the References
section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1949194 - CVE-2021-28875 rust: heap-based buffer overflow in read_to_end() because it does not validate the return value from Read in an unsafe context
1949198 - CVE-2021-28876 rust: panic safety issue in Zip implementation
1949204 - CVE-2021-28877 rust: memory safety violation in Zip implementation for nested iter::Zips
1949207 - CVE-2021-28878 rust: memory safety violation in Zip implementation when next_back() and next() are used together
1949211 - CVE-2021-28879 rust: integer overflow in the Zip implementation can lead to a buffer overflow
1950396 - CVE-2020-36323 rust: optimization for joining strings can cause uninitialized bytes to be exposed
1950398 - CVE-2021-31162 rust: double free in Vec::from_iter function if freeing the element panics

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
rust-1.52.1-1.module+el8.4.0+11282+0729bac9.src.rpm
rust-toolset-1.52.1-1.module+el8.4.0+11282+0729bac9.src.rpm

aarch64:
cargo-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
cargo-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
clippy-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
clippy-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
rls-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
rls-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
rust-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
rust-analysis-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
rust-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
rust-debugsource-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
rust-doc-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
rust-std-static-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
rust-toolset-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
rustfmt-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm
rustfmt-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.aarch64.rpm

noarch:
cargo-doc-1.52.1-1.module+el8.4.0+11282+0729bac9.noarch.rpm
rust-debugger-common-1.52.1-1.module+el8.4.0+11282+0729bac9.noarch.rpm
rust-gdb-1.52.1-1.module+el8.4.0+11282+0729bac9.noarch.rpm
rust-lldb-1.52.1-1.module+el8.4.0+11282+0729bac9.noarch.rpm
rust-src-1.52.1-1.module+el8.4.0+11282+0729bac9.noarch.rpm

ppc64le:
cargo-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
cargo-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
clippy-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
clippy-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
rls-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
rls-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
rust-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
rust-analysis-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
rust-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
rust-debugsource-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
rust-doc-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
rust-std-static-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
rust-toolset-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
rustfmt-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm
rustfmt-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.ppc64le.rpm

s390x:
cargo-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
cargo-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
clippy-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
clippy-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
rls-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
rls-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
rust-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
rust-analysis-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
rust-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
rust-debugsource-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
rust-doc-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
rust-std-static-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
rust-toolset-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
rustfmt-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm
rustfmt-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.s390x.rpm

x86_64:
cargo-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
cargo-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
clippy-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
clippy-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
rls-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
rls-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
rust-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
rust-analysis-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
rust-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
rust-debugsource-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
rust-doc-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
rust-std-static-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
rust-toolset-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
rustfmt-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm
rustfmt-debuginfo-1.52.1-1.module+el8.4.0+11282+0729bac9.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2020-36323
https://access.redhat.com/security/cve/CVE-2021-28875
https://access.redhat.com/security/cve/CVE-2021-28876
https://access.redhat.com/security/cve/CVE-2021-28877
https://access.redhat.com/security/cve/CVE-2021-28878
https://access.redhat.com/security/cve/CVE-2021-28879
https://access.redhat.com/security/cve/CVE-2021-31162
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_developer_tools/1/html/using_rust_1.52.1_toolset

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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